Wheel dresser



May 20, 1924. 1,494,759

J. R. s'ruu.

WHEEL DRESSER Filed Feb. 13 1922 Patented May .20, 1924.

NI'TED 3 I insane JAMES R. S'IULL, OF LOS ANGELES, CALIFORNIA.

WHEEL DRESSER.

Application filed February 13, 1922. Serialii'o. 536,290.

of California, have invented certain new and useful Improvements in Wheel Dressers, of which the following is a specification.

This invention has to do with a device for dressing wheels, such-as emery wheels,

and the like, and it is an object of the invention to provide a simple, convenient, effective device of this character.

Grinding wheels are extensively used in finishing parts or articles and in many in stances are used in forming parts or articles. These wheels must be kept round and their faces must be kept properly dressed otherwise they become ineflicient or inoperative.

A feature of this invention is the provision of a simple, effective device which can be used to quicklyand effectively dress a grinding wheeh The device is extremely simple of construction and operation and therefore is valuable commercially and is practical to use. I

The va-riouswobjects and features of the 7 invention will be best and more fully understood from the following'detailed description of a typical preferred form of the invention throughout which referenceis had to the accompanying drawings in which-- Fig. 1 is a fragmentary perspective'view of a typical grinding wheel showingthe'device provided by the present invention in place to dress the face of the wheel; Fig. 2 is a longitudinal detailed sectional View of the device provided by the invention; and

Fig. 3 is a side elevation of the device be.

ing a View taken as indicated by line 3-3 on Fig. 2.

The device provided by the present invention comprises, generally, a socket 10, a cutting member 11 carried by the socket 10, and a handle 12. In the preferred form of the invention the handle 12 is a hollow rod or tube sufiiciently long to allow the operato-r to conveniently grip it and to obtain the necessary purchase. The socket 10 is a cup like socket formed in the outer end of a tip 13 which is detachably carried at the outer end of the handle 12. The tip 13 is preferably formed of a hard durable metal such as tool steel, or the like, and is comparatively small so that it can be manufactured at a reasonably low cost. In the preferred easy to obtain ball-bearings of'various sizes form of the invention the tip '13 is connect ed to the outer end of the handle 12 by a screw thread connection for instance, the inner end of thetip 13 is formed with a Q projection or lug 1a whichscrew threads into the outer end of the handle 12. The tip 13 is formed at opposite sides with flat parts 16 which can be gripped or engaged by a wrench, or the like, when it is desired to detach it from the handle.

The socket 10 is a roundcup like socket suflieiently large to freely carry the cutting member 11. In practice the exact size, depth, shape, .etc., of the socket 10 will, of course, depend upon the shape,'or characteristics, of the cutting member. When the cutting member 11 is round or spherical it is preferred that the socket 10-be cup shaped so'that it conforms more or less to the curva-J ture of the cutting member. and that it'be sufliciently deep to; receive approximately I half of the cutting member.

The cutting member ll is carried in the socket 10 so that it can rotate and is preferably spherical so that it will readily rotate in any direction. It is particularly convenient, to obtain spherical members which will eflectively serve as cutting memhere. In practice I have found that ordi nary steel ball-bearings, 'WlllCll are, of course, very easily obtainable,'f0rm particularly suitable,cuttingmembersll'. It also may be pointed out that it is particularly and therefore to obtain cutting members. which will properly and most effectively be carried in the socket 10 as the socket wears. For instance, When the socket is first formed or is new it may be of a size to eifectively carry a medium sized "ballbearing while after the device has been used for some little time the socket may have worn to be sufficiently large to receive and properly carry comparatively a large ball-bearing.

In accordance with the invention the handle 12 is used as a carrier for extra cutting members and for cutting members of various sizes. A projection 20 extends inwardly in the handle near its outer end to prevent the cutting members carried in the handle from becoming displaced from the handle through the outer end of the han rated a typical grinding Wheel'25 for the.

purpose of illustrating a typical manner in which the device of the present invene.

tion may be applied to a Wheelfor the pur+ pose 'ofdressingit. The grinding Wheel'25 comprises a Wheel 27 carried on a. spindle 28 which is supported in bearings 29 carried by frame parts 26. A. rest 30iscar- I ried w theframe arts 26 nearthe: eri h- 3 P P P cry or face of the. Wheelin. the usual man ner. To dress the Wheel 27 With the de vice provided by the present invention a suitable cutting member 11 is arranged in the socket of thedevice and'the. tip .13, or

' outer end portiouof the handle. 12, is. an

ranged on the rest- 30 so that the. cutting member is in engagement With the face of the Wheel. The handle 12 of. the device'is firmly gripped and held by the operatorso that the cutting-1nember is inpressureene gagementwith the Wheel 2?. The Wheel is rotatedandthe operator manipulates the device, through the. handle 12, to bring; the cutting member: into engagement W-ltll.

those parts-0fthe wheel that are to be cut away; Upon causing the cutting member 11 to. bear against the face ofthe- Wheel Withalittle pressure. the. material of the Wheel is. quickly cut manipulating; the device the face, of the Wheel 27' can be truly squared' off or? it can be dressed to have. any desired configuration. In practice I" have found that'the cutting member. 11, Whenin theform of'a steel ball bearing; carried ;in: a socket formed in a toolfsteeliti-p, wil-lfl'quickly and effec- It' Will be obvious,

By properly tively dress. agrinding- Wheel upon being held in pressure engagement with it. Further adevice made in accordance With this invention. leaves, the. grinding Wheel sharp after it has been dressed. If the socket 10 Wears; too large or Wears out of shape it can be easily and quickly repaired by removing the tip. from; the handle and placing it in a lathe, whereupon a new socket can be very easily. and quickly cutain. its outer end.

Having. described only a preferred form. of my invention I do. not wish to limit my self. to the particular details hereinabove. set forth but Wish to reserve .to myselfany changes or variations that may appear: to those. skilled inthe art or that may fall Within the. scopeof: the following. claims.

Havingdeseribeda preferred form of my invention, I claim:

1. A device fondressing. awheel comprising a. handle, a cup shaped socket carried byv the handle, and a spherical cutting member. rotatably' carried in the socket.

2. A device for; dressing a- Wheelcomprising, aholl'oW open end-ed handle, a plug screw threaded. into one end 0f the handle, a hard metal tip screw threaded into the other end of "the handle, a projection extending into: the handl'e nearsai-d last mentioned -end .thereof,' a, cupashaped soclret in the. tip, and a hard metalrball rotatably carried in the socket with a partproject ing from.,the;socket.

3. A Wheel dressing device,.embodying a handle: having at. one end a cup shaped sockehandsa hardened ball freely rotatablel in. all directionsinthe socket; and projectingv beyond the end .ofithehandlem In Witness that Ifclaim the foregoing I h ave-hereunto subscribed any name this .17 th day ofNovember, 1921;

. JAMESR'. STULL. 

